ByteDance Seed: bilingual and multimodal image-generation training system

What changed

Developed bilingual text/image encoding and glyph-aware training, extended the pipeline with defect-aware sampling and accelerated generation, and integrated text generation, image editing and multi-image composition.

Scientific scope

Developed bilingual text/image encoding and glyph-aware training, extended the pipeline with defect-aware sampling and accelerated generation, and integrated text generation, image editing and multi-image composition. One contribution-level family package, not three release-name entries. Glyph-aligned ByT5, RoPE, representation alignment, distillation, quantization and speculative decoding are inherited. Acquired deltas are bilingual data/encoding integration, explicitly described acceleration/training and unified multi-image generation/editing. Front collective aliases differ; named authors/appendices remain incomplete here. Resolution, speed and aesthetic results are source-specific and not independently replayed.

Evidence

The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. One contribution-level family package, not three release-name entries. Glyph-aligned ByT5, RoPE, representation alignment, distillation, quantization and speculative decoding are inherited. Acquired deltas are bilingual data/encoding integration, explicitly described acceleration/training and unified multi-image generation/editing. Front collective aliases differ; named authors/appendices remain incomplete here. Resolution, speed and aesthetic results are source-specific and not independently replayed.

Contributors

• Source-listed authors and technical contributors · SCIENCE: Source-listed authors or explicitly credited technical contributors for the cited versions. Family entries retain source-specific attribution; a combined list is not one original-paper byline or equal individual work. Names alone do not establish resolved identities.

• Seedream 2.0: A Native Chinese-English Bilingual Image Generation Foundation Model
• Seedream 3.0 Technical Report
• Seedream 4.0: Toward Next-generation Multimodal Image Generation

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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